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Re: Bowditch long term almanac
From: Geoffrey Kolbe
Date: 2012 May 19, 08:15 +0100
From: Geoffrey Kolbe
Date: 2012 May 19, 08:15 +0100
There does seem to be a considerable difference between the 1956 epoch LTA and the 1972 epoch LTA as given in Bowditch, so it would seem that the corrections were not transplanted wholesale as I suggested. That still leaves the problem as to why the given 1972 epoch quadrennial corrections are so poor. I tried to determine the period of validity - or at least the period over which the corrections would have been calculated, but I could not. It was at that point that I gave up and created my own. >oops, just came to think of a tiny problem, as all parts of the 4 >year sun cycle use same correction in this almanac, I guess it would >have to use some kind of middle ground for the correction to gha and >declination, what would you sugest?, median? average? use correction >for middle of cycle? I am not sure what you are saying here. Perhaps you could restate it? Too, I am afraid the accents in your name mean that your name is reproduced as gibberish on my computer. I would be grateful for an un-accented version of your name so I can address you personally. Geoffrey Kolbe